13504377777727 has 4 divisors (see below), whose sum is σ = 13504385165320. Its totient is φ = 13504370390136.

The previous prime is 13504377777719. The next prime is 13504377777739. The reversal of 13504377777727 is 72777777340531.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13504377777727 - 2³ = 13504377777719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13504377477727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1286149 + ... + 5353777.

It is an arithmetic number, because the mean of its divisors is an integer number (3376096291330).

Almost surely, 2^{13504377777727} is an apocalyptic number.

13504377777727 is a deficient number, since it is larger than the sum of its proper divisors (7387593).

13504377777727 is an equidigital number, since it uses as much as digits as its factorization.

13504377777727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7387592.

The product of its (nonzero) digits is 296475480, while the sum is 67.

The spelling of 13504377777727 in words is "thirteen trillion, five hundred four billion, three hundred seventy-seven million, seven hundred seventy-seven thousand, seven hundred twenty-seven".